12647008 has 96 divisors (see below), whose sum is σ = 29998080. Its totient is φ = 5184000.

The previous prime is 12647003. The next prime is 12647009. The reversal of 12647008 is 80074621.

It is a super-2 number, since 2×12647008² = 319893622704128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207298 + ... + 207358.

It is an arithmetic number, because the mean of its divisors is an integer number (312480).

Almost surely, 2^12647008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12647008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14999040).

12647008 is an abundant number, since it is smaller than the sum of its proper divisors (17351072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12647008 is a wasteful number, since it uses less digits than its factorization.

12647008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 12647008 is about 3556.2632073568. The cubic root of 12647008 is about 232.9856991106.

The spelling of 12647008 in words is "twelve million, six hundred forty-seven thousand, eight".